Q. Which class of engineering ceramics generally includes lubricant materials?

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Q. Which of the following is a characteristic of alumina?

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Q. What is the tensile strength of aluminum oxide?

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Q. Which among the following exhibits the highest thermal conductivity?

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Q. What is the coefficient of thermal expansion of silicon carbide?

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Q. Silicon carbides resist oxidation up to ______

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Q. What disadvantage does silicon carbide have?

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Q. Which of the following is not a type of silicon nitride ceramics?

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Q. Partially stabilized zirconia does not exist in which crystalline structure?

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Q. How much of a stabilizing oxide is present in partially stabilized zirconium?

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Q. Which ceramic material does Si₃Al₃O₃N₅ denote?

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Q. On average, what is the maximum use temperature of engineering ceramics?

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Q. How is the creep strength of ceramics when compared to other materials?

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Q. Thermoplastics are formed by ________

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Q. Which of the following is not a property of thermoplastics?

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Q. Which of the following is an example of a thermoplastic?

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Q. Which of the following is not an example of a commodity thermoplastic?

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Q. Which of these is not a type of polyethylene?

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Q. To overcome the brittleness of polypropylene ______ is used.

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Q. Which of the following is not a type of polystyrene?

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